Preliminary Development of an HY-180 Weldment System.
Abstract
During the past eight years U. S. Steel has been developing an HY-180 weldment system for submarine hulls. Several weldment systems were considered and a 10Ni-Cr-Mo-Co steel was found to provide the best combination of strength, toughness, corrosion resistance, and weldability. Accordingly, most of the work was devoted to determining the properties of production plates and other product forms, and examining the producibility, formability, machinability, physical properties, and other structural characteristics of the 10Ni-Cr-Mo-Co steel and of GTA weldments. The steel, weld metal, and welding procedures evolved are now considered to be at such a state of development that they can be used with a minimum of additional development to produce the hull of a deep submersible, such as DSSV. Moreover, for large structures, such as submarine hulls, the feasibility of using high-deposition-rate welding processes has been demonstrated. Future studies should concentrate on developing practical welding techniques and equipment for actual shipyard construction and on the development of alternative and less costly methods of producing the high-quality steel required for the HY-180 weldment system.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 16, 1971
- Accession Number
- AD0886969
Entities
People
- D. S. Dabkowski
- J. M. Barsom
- L. P. Connor
- Lew F. Porter
- P. J. Konkol
Organizations
- U.S. Steel